Hyun Ja Cho is a notable inventor based in Cheongju, South Korea. He has made significant contributions to the field of electronics, particularly in amplifier technology and display driving circuits. With a total of 2 patents, his work showcases innovative solutions that enhance performance and efficiency in electronic devices.

Latest Patents

Hyun Ja Cho's latest patents include an amplifier that features a dithering switch and a display driving circuit utilizing this amplifier. The amplifier is designed with an input stage, a bias stage, and an output stage. The input stage determines voltage levels of two nodes based on two input voltages, incorporating four path selecting switches, two input transistors, and one bias transistor. The bias stage generates two class AB output voltages corresponding to the voltage levels of the two nodes, utilizing current mirrors, ten path selecting switches, class AB bias circuits, and two bias transistors. The output stage produces an output voltage VOUT that aligns with the two class AB output voltages, featuring two coupling capacitors and two push-pull transistors. The path selecting switches operate based on a first and second path selecting signal that are exclusively enabled with respect to each other.

Additionally, his display driving circuit and method aim to minimize residual images on display panels while reducing electric current consumption. This circuit generates driving signals corresponding to valid data and black data, transmitting these signals to a display panel. It includes N data selection switches, N buffers, N buffer output selection switches, and multiple charge sharing switches. The N data selection switches select between valid and black data, while the buffers and output selection switches manage the signal outputs effectively.

Career Highlights

Hyun Ja Cho is currently employed at Silicon Works Co., Ltd., where he continues to innovate in the field of electronics. His work has been instrumental in developing advanced technologies that improve the functionality of electronic devices.

Collaborations

Throughout his career, Hyun Ja Cho has collaborated with talented individuals such as Dae Keun Han and Yong Sung Ahn. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Hyun Ja Cho's contributions to amplifier technology and display driving circuits reflect his commitment to innovation in electronics. His patents demonstrate a deep understanding of electronic systems and a drive to enhance their performance. His work continues to influence

Profile summary based on public USPTO records.

Please report any incorrect information to [email protected]